<template>
  <div>
    <!-- 面包屑导航 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
      <!-- 搜索区域 -->
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            :clearable="true"
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="6">
          <el-button type="primary" @click="addDialogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 用户列表区域 -->
      <el-table :data="userList" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" prop="mg_state">
          <template slot-scope="scope">
            <el-switch
              v-model="scope.row.mg_state"
              @change="userStateChanged(scope.row)"
            ></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="200px">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button
              type="primary"
              icon="el-icon-edit"
              size="small"
              @click="showUpdateDialog(scope.row.id)"
            ></el-button>
            <!-- 删除按钮 -->
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="small"
              @click="removeUserById(scope.row.id)"
            ></el-button>
            <!-- 分配角色按钮 -->

            <el-tooltip
              effect="dark"
              content="分配角色"
              placement="top"
              :enterable="false"
            >
              <el-button
                type="warning"
                icon="el-icon-setting"
                size="small"
                @click="showSetRoleDialog(scope.row)"
              ></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[1, 3, 5, 7]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>

    <!-- 添加用户的弹出框 -->
    <el-dialog
      title="添加用户"
      :visible.sync="addDialogVisible"
      width="50%"
      @close="addDialogClosed"
    >
      <!-- 内容主体区域 -->
      <el-form
        :model="addForm"
        :rules="addFormRules"
        ref="addFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input type="password" v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <!-- 底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户的弹出框 -->
    <el-dialog
      title="修改用户"
      :visible.sync="updateDialogVisible"
      width="50%"
      @closed="updateDialogClosed"
    >
      <el-form
        :model="updateForm"
        :rules="updateFormRules"
        ref="updateFormRef"
        label-width="70px"
      >
        <el-form-item label="用户名" prop="username">
          <el-input v-model="updateForm.username" :disabled="true"> </el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="updateForm.email"> </el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="updateForm.mobile"> </el-input>
        </el-form-item>
      </el-form>

      <!-- 弹出框底部区域 -->
      <span slot="footer" class="dialog-footer">
        <el-button @click="updateDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="updateUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 分配角色的弹出框 -->
    <el-dialog
      title="分配角色"
      :visible.sync="setRoleDialogVisible"
      width="50%"
      @close="setRoleDialogClosed"
    >
      <p>当前的用户 : {{ curUser.username }}</p>
      <p>当前的角色 : {{ curUser.role_name }}</p>
      <!-- 选择角色select选择器 -->
      <p>分配新角色 :
        <el-select v-model="selectedRoleId" placeholder="请选择">
          <el-option
            v-for="item in roleList"
            :key="item.id"
            :label="item.roleName"
            :value="item.id"
          >
          </el-option>
        </el-select>
      </p>

      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="setRole"
          >确 定</el-button
        >
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data() {
    //   验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmail = /^[a-zA-Z0-9_-]+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile =
        /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入11位合法的手机号'))
    }
    return {
      // 获取用户列表的参数
      queryInfo: {
        query: '',
        // 当前页数
        pagenum: 1,
        // 当前每页显示多少条数据
        pagesize: 5,
      },
      userList: [],
      total: 0,
      //   添加用户弹出框
      addDialogVisible: false,
      //   添加用户弹出框
      updateDialogVisible: false,
      // 分配角色弹出框
      setRoleDialogVisible: false,
      //   添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: '',
      },
      // 所有角色列表
      roleList: [],

      // 分配角色时选中的用户
      curUser:{},
      //   修改用户的表单数据
      updateForm: [],
      // 已选中的角色id值
      selectedRoleId:'',
      //   添加表单的验证规则
      addFormRules: {
        username: [
          { required: true, message: '用户名不能为空', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '用户名长度在3~10个字符之间',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '密码不能为空', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '密码长度在6~15个字符之间',
            trigger: 'blur',
          },
        ],
        email: [
          { required: true, message: '邮箱不能为空', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
      updateFormRules: {
        email: [
          { required: true, message: '邮箱不能为空', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' },
        ],
        mobile: [
          { required: true, message: '手机号不能为空', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' },
        ],
      },
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    async getUserList() {
      const { data: res } = await this.$http.get('/users', {
        params: this.queryInfo,
      })
      if (res.meta.status !== 200)
        return this.$message.error('获取用户列表失败')
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听页码大小(每页显示多少条)
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听当前页
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关状态的改变
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )

      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户弹出框的关闭事件
    addDialogClosed() {
      // 重置添加用户弹出框
      this.$refs.addFormRef.resetFields()
    },

    // 点击按钮，添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async (valid) => {
        if (!valid) return
        // 发起添加用户的网络请求
        const { data: res } = await this.$http.post('/users', this.addForm)
        console.log(res)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')

        this.$message.success('添加用户成功')
        // 隐藏添加用户的弹出框
        this.addDialogVisible = false
        // 重新获取
        this.getUserList()
      })
    },

    // 点击按钮弹出更新用户的弹出框
    async showUpdateDialog(id) {
      // 根据用户id查询用户信息
      const { data: res } = await this.$http.get('/users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.updateForm = res.data
      this.updateDialogVisible = true
    },
    // 监听修改用户弹出框的关闭事件
    updateDialogClosed() {
      this.$refs.updateFormRef.resetFields()
    },

    // 点击按钮，修改用户
    updateUser() {
      this.$refs.updateFormRef.validate(async (valid) => {
        if (!valid) return
        // 发起修改用户请求
        const { data: res } = await this.$http.put(
          '/users/' + this.updateForm.id,
          {
            email: this.updateForm.email,
            mobile: this.updateForm.mobile,
          }
        )
        if (res.meta.status !== 200)
          return this.$message.error('更新用户信息失败')
        this.getUserList()
        this.updateDialogVisible = false
        this.$message.success('更新用户信息成功')
      })
    },

    // 点击按钮弹出删除用户的信息框
    async removeUserById(id) {
      // 弹出询问用户是否删除数据
      const result = await this.$confirm(
        '此操作将永久删除该用户,是否继续?',
        '提示',
        {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning',
        }
      ).catch((error) => error)

      if (result !== 'confirm') return this.$message.info('已取消删除')

      const { data: res } = await this.$http.delete('/users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      this.getUserList()
      this.$message.success('删除用户成功')
    },

    // 点击按钮，展示分配角色的弹出框
    async showSetRoleDialog(role) {
      // 获取所有角色列表
      const { data: res } = await this.$http.get('/roles')
      if (res.meta.status !== 200)
        return this.$message.error('获取角色列表失败')
      this.roleList = res.data

      this.curUser = role
      this.setRoleDialogVisible = true
    },

    // 点击按钮，设置角色
    async setRole(){
      if(!this.selectedRoleId){
        return this.$message.error('请选择要分配的角色!')
      } 
      const {data:res} = await this.$http.put(`/users/${this.curUser.id}/role`,{rid:this.selectedRoleId})
      if(res.meta.status !== 200) return this.$message.error('设置角色失败')
      this.getUserList()
      this.setRoleDialogVisible = false
      this.$message.success('设置角色成功')
    },
    // 监听设置角色弹出框的关闭事件
    setRoleDialogClosed(){
      this.selectedRoleId = ''
      this.curUser = {}
    }
  },
}
</script>

<style lang="less" scoped>
</style>